hi, i lost my E partition once when i used an old version of an Acronis program. to recover the partition i used testdisk, it's a dos program. you can get the link for it and more useful partition tools at ultimatebootcd. they are under Partition Toolshttp://www.ultimatebootcd.com/

If there is a problem with the Boot-sector on the C:-drive, you can use "fixboot" to write
a new boot-sector.

Follow Bubba's instructions to get into the Recovery Console and run the fixboot command with the appropriate drive designated. You will need to run this from the root directory--(ie: C: ) If you're unsure of the syntax, type "fixboot /?". Omit quotes.